Even more ice is about to break off of Antarctica -- and it's what scientists feared most

The giant crack that’s been racing across Antarctica Larsen C ice shelf finally met its breaking point between July 10 and 12. The result was an iceberg the size of Delaware and weighing a trillion metric tons.

But that’s not the end of the story. In fact, it could be the beginning of a more important, more dangerous story.

The iceberg that broke off — dubbed A68 — was just one piece of the much larger Larsen C ice shelf. Now, scientists want to know how stable is the ice shelf that has been left intact, connected to the Antarctic continent.

Moreover, a new crack has formed close to where the old crack left off. And it’s headed for Bawden Ice Rise, which is a critical anchor point for the ice shelf. Scientists aren’t certain the crack will reach Bawden Ice Rise, but they are keeping a close eye on it, nevertheless.